2 * VMM VxD implementation
4 * Copyright 1998 Marcus Meissner
5 * Copyright 1998 Ulrich Weigand
6 * Copyright 1998 Patrik Stridvall
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include "wine/port.h"
34 #include "wine/debug.h"
36 WINE_DEFAULT_DEBUG_CHANNEL(vxd);
39 * VMM VxDCall service names are (mostly) taken from Stan Mitchell's
40 * "Inside the Windows 95 File System"
43 #define N_VMM_SERVICE 41
45 static const char * const VMM_Service_Name[N_VMM_SERVICE] =
47 "PageReserve", /* 0x0000 */
48 "PageCommit", /* 0x0001 */
49 "PageDecommit", /* 0x0002 */
50 "PagerRegister", /* 0x0003 */
51 "PagerQuery", /* 0x0004 */
52 "HeapAllocate", /* 0x0005 */
53 "ContextCreate", /* 0x0006 */
54 "ContextDestroy", /* 0x0007 */
55 "PageAttach", /* 0x0008 */
56 "PageFlush", /* 0x0009 */
57 "PageFree", /* 0x000A */
58 "ContextSwitch", /* 0x000B */
59 "HeapReAllocate", /* 0x000C */
60 "PageModifyPermissions", /* 0x000D */
61 "PageQuery", /* 0x000E */
62 "GetCurrentContext", /* 0x000F */
63 "HeapFree", /* 0x0010 */
64 "RegOpenKey", /* 0x0011 */
65 "RegCreateKey", /* 0x0012 */
66 "RegCloseKey", /* 0x0013 */
67 "RegDeleteKey", /* 0x0014 */
68 "RegSetValue", /* 0x0015 */
69 "RegDeleteValue", /* 0x0016 */
70 "RegQueryValue", /* 0x0017 */
71 "RegEnumKey", /* 0x0018 */
72 "RegEnumValue", /* 0x0019 */
73 "RegQueryValueEx", /* 0x001A */
74 "RegSetValueEx", /* 0x001B */
75 "RegFlushKey", /* 0x001C */
76 "RegQueryInfoKey", /* 0x001D */
77 "GetDemandPageInfo", /* 0x001E */
78 "BlockOnID", /* 0x001F */
79 "SignalID", /* 0x0020 */
80 "RegLoadKey", /* 0x0021 */
81 "RegUnLoadKey", /* 0x0022 */
82 "RegSaveKey", /* 0x0023 */
83 "RegRemapPreDefKey", /* 0x0024 */
84 "PageChangePager", /* 0x0025 */
85 "RegQueryMultipleValues", /* 0x0026 */
86 "RegReplaceKey", /* 0x0027 */
87 "<KERNEL32.101>" /* 0x0028 -- What does this do??? */
90 /* PageReserve arena values */
91 #define PR_PRIVATE 0x80000400 /* anywhere in private arena */
92 #define PR_SHARED 0x80060000 /* anywhere in shared arena */
93 #define PR_SYSTEM 0x80080000 /* anywhere in system arena */
95 /* PageReserve flags */
96 #define PR_FIXED 0x00000008 /* don't move during PageReAllocate */
97 #define PR_4MEG 0x00000001 /* allocate on 4mb boundary */
98 #define PR_STATIC 0x00000010 /* see PageReserve documentation */
100 /* PageCommit default pager handle values */
101 #define PD_ZEROINIT 0x00000001 /* swappable zero-initialized pages */
102 #define PD_NOINIT 0x00000002 /* swappable uninitialized pages */
103 #define PD_FIXEDZERO 0x00000003 /* fixed zero-initialized pages */
104 #define PD_FIXED 0x00000004 /* fixed uninitialized pages */
106 /* PageCommit flags */
107 #define PC_FIXED 0x00000008 /* pages are permanently locked */
108 #define PC_LOCKED 0x00000080 /* pages are made present and locked */
109 #define PC_LOCKEDIFDP 0x00000100 /* pages are locked if swap via DOS */
110 #define PC_WRITEABLE 0x00020000 /* make the pages writeable */
111 #define PC_USER 0x00040000 /* make the pages ring 3 accessible */
112 #define PC_INCR 0x40000000 /* increment "pagerdata" each page */
113 #define PC_PRESENT 0x80000000 /* make pages initially present */
114 #define PC_STATIC 0x20000000 /* allow commit in PR_STATIC object */
115 #define PC_DIRTY 0x08000000 /* make pages initially dirty */
116 #define PC_CACHEDIS 0x00100000 /* Allocate uncached pages - new for WDM */
117 #define PC_CACHEWT 0x00080000 /* Allocate write through cache pages - new for WDM */
118 #define PC_PAGEFLUSH 0x00008000 /* Touch device mapped pages on alloc - new for WDM */
120 /* PageCommitContig additional flags */
121 #define PCC_ZEROINIT 0x00000001 /* zero-initialize new pages */
122 #define PCC_NOLIN 0x10000000 /* don't map to any linear address */
125 /* Pop a DWORD from the 32-bit stack */
126 static inline DWORD stack32_pop( CONTEXT86 *context )
128 DWORD ret = *(DWORD *)context->Esp;
129 context->Esp += sizeof(DWORD);
134 /***********************************************************************
135 * VxDCall (VMM.VXD.@)
137 DWORD WINAPI VMM_VxDCall( DWORD service, CONTEXT86 *context )
141 switch ( LOWORD(service) )
143 case 0x0000: /* PageReserve */
147 DWORD psize = getpagesize();
148 ULONG page = (ULONG) stack32_pop( context );
149 ULONG npages = (ULONG) stack32_pop( context );
150 ULONG flags = (ULONG) stack32_pop( context );
152 TRACE("PageReserve: page: %08lx, npages: %08lx, flags: %08lx partial stub!\n",
153 page, npages, flags );
155 if ( page == PR_SYSTEM ) {
156 ERR("Can't reserve ring 1 memory\n");
159 /* FIXME: This has to be handled separately for the separate
160 address-spaces we now have */
161 if ( page == PR_PRIVATE || page == PR_SHARED ) page = 0;
162 /* FIXME: Handle flags in some way */
163 address = (LPVOID )(page * psize);
164 ret = VirtualAlloc ( address, ( npages * psize ), MEM_RESERVE, 0 );
165 TRACE("PageReserve: returning: %08lx\n", (DWORD )ret );
172 case 0x0001: /* PageCommit */
177 DWORD psize = getpagesize();
178 ULONG page = (ULONG) stack32_pop( context );
179 ULONG npages = (ULONG) stack32_pop( context );
180 ULONG hpd = (ULONG) stack32_pop( context );
181 ULONG pagerdata = (ULONG) stack32_pop( context );
182 ULONG flags = (ULONG) stack32_pop( context );
184 TRACE("PageCommit: page: %08lx, npages: %08lx, hpd: %08lx pagerdata: "
185 "%08lx, flags: %08lx partial stub\n",
186 page, npages, hpd, pagerdata, flags );
188 if ( flags & PC_USER )
189 if ( flags & PC_WRITEABLE )
190 virt_perm = PAGE_EXECUTE_READWRITE;
192 virt_perm = PAGE_EXECUTE_READ;
194 virt_perm = PAGE_NOACCESS;
196 address = (LPVOID )(page * psize);
197 ret = VirtualAlloc ( address, ( npages * psize ), MEM_COMMIT, virt_perm );
198 TRACE("PageCommit: Returning: %08lx\n", (DWORD )ret );
203 case 0x0002: /* PageDecommit */
207 DWORD psize = getpagesize();
208 ULONG page = (ULONG) stack32_pop( context );
209 ULONG npages = (ULONG) stack32_pop( context );
210 ULONG flags = (ULONG) stack32_pop( context );
212 TRACE("PageDecommit: page: %08lx, npages: %08lx, flags: %08lx partial stub\n",
213 page, npages, flags );
214 address = (LPVOID )( page * psize );
215 ret = VirtualFree ( address, ( npages * psize ), MEM_DECOMMIT );
216 TRACE("PageDecommit: Returning: %s\n", ret ? "TRUE" : "FALSE" );
220 case 0x000d: /* PageModifyPermissions */
226 MEMORY_BASIC_INFORMATION mbi;
228 DWORD psize = getpagesize();
229 ULONG page = stack32_pop ( context );
230 ULONG npages = stack32_pop ( context );
231 ULONG permand = stack32_pop ( context );
232 ULONG permor = stack32_pop ( context );
234 TRACE("PageModifyPermissions %08lx %08lx %08lx %08lx partial stub\n",
235 page, npages, permand, permor );
236 address = (LPVOID )( page * psize );
238 VirtualQuery ( address, &mbi, sizeof ( MEMORY_BASIC_INFORMATION ));
239 virt_old_perm = mbi.Protect;
241 switch ( virt_old_perm & mbi.Protect ) {
244 case PAGE_EXECUTE_READ:
245 pg_old_perm = PC_USER;
249 case PAGE_EXECUTE_READWRITE:
250 case PAGE_EXECUTE_WRITECOPY:
251 pg_old_perm = PC_USER | PC_WRITEABLE;
258 pg_new_perm = pg_old_perm;
259 pg_new_perm &= permand & ~PC_STATIC;
260 pg_new_perm |= permor & ~PC_STATIC;
262 virt_new_perm = ( virt_old_perm ) & ~0xff;
263 if ( pg_new_perm & PC_USER )
265 if ( pg_new_perm & PC_WRITEABLE )
266 virt_new_perm |= PAGE_EXECUTE_READWRITE;
268 virt_new_perm |= PAGE_EXECUTE_READ;
271 if ( ! VirtualProtect ( address, ( npages * psize ), virt_new_perm, &virt_old_perm ) ) {
272 ERR("Can't change page permissions for %08lx\n", (DWORD )address );
275 TRACE("Returning: %08lx\n", pg_old_perm );
279 case 0x000a: /* PageFree */
282 LPVOID hmem = (LPVOID) stack32_pop( context );
283 DWORD flags = (DWORD ) stack32_pop( context );
285 TRACE("PageFree: hmem: %08lx, flags: %08lx partial stub\n",
286 (DWORD )hmem, flags );
288 ret = VirtualFree ( hmem, 0, MEM_RELEASE );
289 TRACE("Returning: %d\n", ret );
293 case 0x0011: /* RegOpenKey */
294 stack32_pop( context ); /* kkey */
295 stack32_pop( context ); /* lpszSubKey */
296 stack32_pop( context ); /* retkey */
297 /* return RegOpenKeyExA( hkey, lpszSubKey, 0, KEY_ALL_ACCESS, retkey ); */
300 ERR( "Using the native Win95 advapi32.dll is no longer supported.\n" );
301 ERR( "Please configure advapi32 to builtin.\n" );
304 return ERROR_CALL_NOT_IMPLEMENTED;
306 case 0x0012: /* RegCreateKey */
307 stack32_pop( context ); /* hkey */
308 stack32_pop( context ); /* lpszSubKey */
309 stack32_pop( context ); /* retkey */
310 /* return RegCreateKeyA( hkey, lpszSubKey, retkey ); */
313 ERR( "Using the native Win95 advapi32.dll is no longer supported.\n" );
314 ERR( "Please configure advapi32 to builtin.\n" );
317 return ERROR_CALL_NOT_IMPLEMENTED;
319 case 0x0013: /* RegCloseKey */
320 stack32_pop( context ); /* hkey */
321 /* return RegCloseKey( hkey ); */
322 return ERROR_CALL_NOT_IMPLEMENTED;
324 case 0x0014: /* RegDeleteKey */
325 stack32_pop( context ); /* hkey */
326 stack32_pop( context ); /* lpszSubKey */
327 /* return RegDeleteKeyA( hkey, lpszSubKey ); */
328 return ERROR_CALL_NOT_IMPLEMENTED;
330 case 0x0015: /* RegSetValue */
331 stack32_pop( context ); /* hkey */
332 stack32_pop( context ); /* lpszSubKey */
333 stack32_pop( context ); /* dwType */
334 stack32_pop( context ); /* lpszData */
335 stack32_pop( context ); /* cbData */
336 /* return RegSetValueA( hkey, lpszSubKey, dwType, lpszData, cbData ); */
337 return ERROR_CALL_NOT_IMPLEMENTED;
339 case 0x0016: /* RegDeleteValue */
340 stack32_pop( context ); /* hkey */
341 stack32_pop( context ); /* lpszValue */
342 /* return RegDeleteValueA( hkey, lpszValue ); */
343 return ERROR_CALL_NOT_IMPLEMENTED;
345 case 0x0017: /* RegQueryValue */
346 stack32_pop( context ); /* hkey */
347 stack32_pop( context ); /* lpszSubKey */
348 stack32_pop( context ); /* lpszData */
349 stack32_pop( context ); /* lpcbData */
350 /* return RegQueryValueA( hkey, lpszSubKey, lpszData, lpcbData ); */
351 return ERROR_CALL_NOT_IMPLEMENTED;
353 case 0x0018: /* RegEnumKey */
354 stack32_pop( context ); /* hkey */
355 stack32_pop( context ); /* iSubkey */
356 stack32_pop( context ); /* lpszName */
357 stack32_pop( context ); /* lpcchName */
358 /* return RegEnumKeyA( hkey, iSubkey, lpszName, lpcchName ); */
359 return ERROR_CALL_NOT_IMPLEMENTED;
361 case 0x0019: /* RegEnumValue */
362 stack32_pop( context ); /* hkey */
363 stack32_pop( context ); /* iValue */
364 stack32_pop( context ); /* lpszValue */
365 stack32_pop( context ); /* lpcchValue */
366 stack32_pop( context ); /* lpReserved */
367 stack32_pop( context ); /* lpdwType */
368 stack32_pop( context ); /* lpbData */
369 stack32_pop( context ); /* lpcbData */
370 /* return RegEnumValueA( hkey, iValue, lpszValue, lpcchValue, lpReserved, lpdwType, lpbData, lpcbData ); */
371 return ERROR_CALL_NOT_IMPLEMENTED;
373 case 0x001A: /* RegQueryValueEx */
374 stack32_pop( context ); /* hkey */
375 stack32_pop( context ); /* lpszValue */
376 stack32_pop( context ); /* lpReserved */
377 stack32_pop( context ); /* lpdwType */
378 stack32_pop( context ); /* lpbData */
379 stack32_pop( context ); /* lpcbData */
380 /* return RegQueryValueExA( hkey, lpszValue, lpReserved, lpdwType, lpbData, lpcbData ); */
381 return ERROR_CALL_NOT_IMPLEMENTED;
383 case 0x001B: /* RegSetValueEx */
384 stack32_pop( context ); /* hkey */
385 stack32_pop( context ); /* lpszValue */
386 stack32_pop( context ); /* dwReserved */
387 stack32_pop( context ); /* dwType */
388 stack32_pop( context ); /* lpbData */
389 stack32_pop( context ); /* cbData */
390 /* return RegSetValueExA( hkey, lpszValue, dwReserved, dwType, lpbData, cbData ); */
391 return ERROR_CALL_NOT_IMPLEMENTED;
393 case 0x001C: /* RegFlushKey */
394 stack32_pop( context ); /* hkey */
395 /* return RegFlushKey( hkey ); */
396 return ERROR_CALL_NOT_IMPLEMENTED;
398 case 0x001D: /* RegQueryInfoKey */
399 /* NOTE: This VxDCall takes only a subset of the parameters that the
400 corresponding Win32 API call does. The implementation in Win95
401 ADVAPI32 sets all output parameters not mentioned here to zero. */
402 stack32_pop( context ); /* hkey */
403 stack32_pop( context ); /* lpcSubKeys */
404 stack32_pop( context ); /* lpcchMaxSubKey */
405 stack32_pop( context ); /* lpcValues */
406 stack32_pop( context ); /* lpcchMaxValueName */
407 stack32_pop( context ); /* lpcchMaxValueData */
408 /* return RegQueryInfoKeyA( hkey, lpcSubKeys, lpcchMaxSubKey, lpcValues, lpcchMaxValueName, lpcchMaxValueData ); */
409 return ERROR_CALL_NOT_IMPLEMENTED;
411 case 0x001e: /* GetDemandPageInfo */
413 DWORD dinfo = (DWORD)stack32_pop( context );
414 DWORD flags = (DWORD)stack32_pop( context );
416 /* GetDemandPageInfo is supposed to fill out the struct at
417 * "dinfo" with various low-level memory management information.
418 * Apps are certainly not supposed to call this, although it's
419 * demoed and documented by Pietrek on pages 441-443 of "Windows
420 * 95 System Programming Secrets" if any program needs a real
421 * implementation of this.
424 FIXME("GetDemandPageInfo(%08lx %08lx): stub!\n", dinfo, flags);
429 case 0x0021: /* RegLoadKey */
431 HKEY hkey = (HKEY) stack32_pop( context );
432 LPCSTR lpszSubKey = (LPCSTR)stack32_pop( context );
433 LPCSTR lpszFile = (LPCSTR)stack32_pop( context );
434 FIXME("RegLoadKey(%p,%s,%s): stub\n",hkey, debugstr_a(lpszSubKey), debugstr_a(lpszFile));
435 return ERROR_CALL_NOT_IMPLEMENTED;
438 case 0x0022: /* RegUnLoadKey */
440 HKEY hkey = (HKEY) stack32_pop( context );
441 LPCSTR lpszSubKey = (LPCSTR)stack32_pop( context );
442 FIXME("RegUnLoadKey(%p,%s): stub\n",hkey, debugstr_a(lpszSubKey));
443 return ERROR_CALL_NOT_IMPLEMENTED;
446 case 0x0023: /* RegSaveKey */
448 HKEY hkey = (HKEY) stack32_pop( context );
449 LPCSTR lpszFile = (LPCSTR)stack32_pop( context );
450 LPSECURITY_ATTRIBUTES sa = (LPSECURITY_ATTRIBUTES)stack32_pop( context );
451 FIXME("RegSaveKey(%p,%s,%p): stub\n",hkey, debugstr_a(lpszFile),sa);
452 return ERROR_CALL_NOT_IMPLEMENTED;
455 #if 0 /* Functions are not yet implemented in misc/registry.c */
456 case 0x0024: /* RegRemapPreDefKey */
457 case 0x0026: /* RegQueryMultipleValues */
460 case 0x0027: /* RegReplaceKey */
462 HKEY hkey = (HKEY) stack32_pop( context );
463 LPCSTR lpszSubKey = (LPCSTR)stack32_pop( context );
464 LPCSTR lpszNewFile= (LPCSTR)stack32_pop( context );
465 LPCSTR lpszOldFile= (LPCSTR)stack32_pop( context );
466 FIXME("RegReplaceKey(%p,%s,%s,%s): stub\n", hkey, debugstr_a(lpszSubKey),
467 debugstr_a(lpszNewFile),debugstr_a(lpszOldFile));
468 return ERROR_CALL_NOT_IMPLEMENTED;
472 if (LOWORD(service) < N_VMM_SERVICE)
473 FIXME( "Unimplemented service %s (%08lx)\n",
474 VMM_Service_Name[LOWORD(service)], service);
476 FIXME( "Unknown service %08lx\n", service);
477 return 0xffffffff; /* FIXME */